//package com.woniu.common.config;
//
//import org.springframework.stereotype.Component;
//
//import javax.servlet.*;
//import javax.servlet.http.HttpServletRequest;
//import javax.servlet.http.HttpServletResponse;
//import java.io.IOException;
//
//
//@Component
//public class MyCrossOriginFilter implements Filter {
//    @Override
//    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
//                         FilterChain filterChain) throws IOException, ServletException {
//        HttpServletRequest request = (HttpServletRequest) servletRequest;
//        HttpServletResponse response = (HttpServletResponse) servletResponse;
//        // 设置允许跨域的域名或模式
//        response.setHeader("Access-Control-Allow-Origin", "*");
//        // 是否支持发送cookie
//        response.setHeader("Access-Control-Allow-Credentials", "true");
//        // 放行的请求方式
//        response.setHeader("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, OPTIONS");
//        // 预检请求的有效期
//        response.setHeader("Access-Control-Max-Age", "3600");
//        // 放行的那些原始头的信息
//        response.setHeader("Access-Control-Allow-Headers", "*");
//        // 暴露的响应头信息
//        response.setHeader("Access-Control-Expose-Headers", "*");
//
//        // 如果是预检请求(OPTIONS)，则直接返回，不继续处理
//        if ("OPTIONS".equalsIgnoreCase(request.getMethod())) {
//            response.setStatus(HttpServletResponse.SC_OK);
//            return;
//        }
//        // 放行
//        filterChain.doFilter(request, response);
//    }
//}
